Home / 3,423.52-5,130.78-1,574.38

Finding the Fourth Proportional to 3,423.52, 5,130.78 and 1,574.38

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Solution

The fourth proportional to 3,423.52, 5,130.78 and 1,574.38 is: 2,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.52 : 5,130.78 = 1,574.38 : x
  2. Step 2: Convert to fraction form
    3,423.52/5,130.78 = 1,574.38/x
  3. Step 3: Cross multiply
    3,423.52x = 5,130.78 × 1,574.38
  4. Step 4: Simplify right side
    3,423.52x = 8,077,797.42
  5. Step 5: Solve for x
    x = 8,077,797.42/3,423.52
  6. Step 6: Final answer
    x = 2,359.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.